James arkell



Patented Apr. 25, I899;

R ATED PAPER.

. J; 'ARKELL.

% INVENTOR g Attmey JAMES ARKELL, OF CANAJOIIARIE, NEW YORK, ASSIGNOR TOSARAH HALL ARKELL, OF SAME PLACEQ METHOD OF MANUFACTURING CORRUGATEDPAPER.

SPECIFICATION forming part of Letters Patent No. 623,695, dated April25, 1899.

Application filed February 21, 1898. Serial No. 671,209. (No specimens.)

To all wh0m it may concern: 7

Be it known that I, J AMES ARKELL, a resident of Canajoharie, in thecounty of Montgomery and State of New York, have invented certain newand useful Improvements in Methods of Manufacturing Corrugated Paper;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same. 1

My invention relates to an improvement in the method of manufacturingcorrugated paper, the object of the invention being to produce anelastic paper for the purpose of making elastic bags or other articlesand to manufacture said elastic paper insuch manner as to avoidinjurious distention or partial rupture of the fiber and retain theoriginal strength of the paper.

lVith this object in View the invention consists in certain novel stepsin the method of making corrugated paper, as hereinafter set forth, andpointed out in the claims.

The accompanying drawing is a view illustrating a series of corrugatedrollers by means of which myimprovements can be carried into effect.

Ordinarily paper has been heretofore corrugated in a comparatively drycondition, for

the reason that damp orWet paper in the proc-- ess of corrugating has atendency to destructive creases or to an injurious strain of the fiberby the stretching during the process. As all paper is in the abstract awoody fiber, the nearer it approximates to a dry condition the greaterwill be the liability of fracture. This is evidenced in the necessityfor soaking or steaming wood for curved forms, whereby the fiber becomespliant and loses its liability to sliver. My purpose is to avoid theinjurious distention and partial rupture of the fiber by delivering thepaper to the ultimate corrugating-rollers in the form of loose wavesthat narrow the ply and which, entering the loose rolls, are simplydistended to uninj urious corrugations by the absorption of the surplusof the coarser indented waves and so taking up the presented surplusagein place of disturbing the fiber by distention. For this reason andaccording to the thickness of the sheet subjected to the pressure Ifirst run the paper through water at its natural temperature or tepid orhot water, as required, to saturate varying thicknesses of paper, thesuper-abundance of the liquid being pressed out of the stock in anysuitable manner, and then de liver the thoroughly-moistened ply tocoarse corrugated rollers, varying in number and variation ofcorrugation according to the requirements of the material undertreatment.

I. have not shown in the drawing, nor do I deem it necessary to show thegearing for rotating the corrugated rollers, nor the saturating-vats,nor the subsequent drying devices, as these may be of the usualconstruction.

The pair of rollers A are made with coarse corrugations, the rollers Bwith finer corrugations, and the rollers C with still finercorrugations. With some thicknesses of material two pairs of rollers,one coarse and the other fine, may suffice and with other materialsseveral pairs of rollers, each pair having its corrugations smaller thanthe preceding pair. The number of pairs of rollers and the sizes of thecorrugations therein are not matters of great importance; but thecorrugations of the first pair of rollers between which the stock ispassed must be coarser than the corrugations of the last or finishingpair of rollers, so that as the paper passes through the finelycorrugated rollers the coarse corrugations or waves formed by thecoarsely-corrugated rollers will be distended to uninjured finecorrugations by the absorption of said coarse corrugations or waves.

A corrugated paper thus manufactured will be very elastic and strong(its fibers not having been injured) and is particularly useful formaking elastic paper bags for containing flour or other material.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The herein-described method consisting in first corrugating paper toform coarse waves and then distending said waves by the absorptionthereof to form finer corrugations, substantially as set forth.

2. The herein-described method consisting in moistening paper;corrugating the moist paper to form coarse waves and then distend- Intestimony whereof I have signed this specification in the presence oftwo subserib- IO ing witnesses.

JAMES ARKELL.

| Witnesses: GRACE II. QUAIFE, WILLIAM J. ARKELL.

